have a flavour of; taste of

the tea smacked strongly of tannin

strike (someone or something), typically with the palm of the hand and as a punishment

Jessica smacked his face, quite hard

part (one's lips) noisily in eager anticipation or enjoyment of food or drink

Morgan drank half the Scotch and smacked his lips

crack (a whip)

the four postilions smacked their whips in concert